C# ScriptEngine.CallGlobalFunction方法代码示例

        public override string GetVideoUrl(string url)
        {
            if(!url.Contains("embed-"))
            {
                url = url.Replace("play.to/", "play.to/embed-");
            }
            if (!url.EndsWith(".html"))
            {
                url += ".html";
            }

            string data = GetWebData<string>(url);
            Regex rgx = new Regex(@">eval(?<js>.*?)</script>", RegexOptions.Singleline);
            Match m = rgx.Match(data);
            if (m.Success)
            {
                ScriptEngine engine = new ScriptEngine();
                string js = m.Groups["js"].Value;
                engine.Execute("var player = " + js + ";");
                engine.Execute("function getPlayer() { return player; };");
                data = engine.CallGlobalFunction("getPlayer").ToString();
                rgx = new Regex(@"file:""(?<url>http[^""]*?.mp4)""");
                m = rgx.Match(data);
                if (m.Success)
                {
                    return m.Groups["url"].Value;
                }
            }
            return "";
        }

        public void Process(BundleContext context, BundleResponse response)
        {
            var coffeeScriptPath =
                Path.Combine(
                    HttpRuntime.AppDomainAppPath,
                    "Scripts",
                    "coffee-script.js");

            if (!File.Exists(coffeeScriptPath))
            {
                throw new FileNotFoundException(
                    "Could not find coffee-script.js beneath the ~/Scripts directory.");
            }

            var coffeeScriptCompiler =
                File.ReadAllText(coffeeScriptPath, Encoding.UTF8);

            var engine = new ScriptEngine();
            engine.Execute(coffeeScriptCompiler);

            // Initializes a wrapper function for the CoffeeScript compiler.
            var wrapperFunction =
                string.Format(
                    "var compile = function (src) {{ return CoffeeScript.compile(src, {{ bare: {0} }}); }};",
                    _bare.ToString(CultureInfo.InvariantCulture).ToLower());
            
            engine.Execute(wrapperFunction);
            
            var js = engine.CallGlobalFunction("compile", response.Content);
                
            response.ContentType = ContentTypes.JavaScript;
            response.Content = js.ToString();
        }

        public override string GetVideoUrl(string url)
        {

            string url2 = url;
            if (url.ToLower().Contains("view.php"))
            {
                url2 = url.Replace("view.php", "iframe.php");
            }
            else if (!url.ToLower().Contains("iframe.php"))
            {
                int p = url.IndexOf('?');
                url2 = url.Insert(p, "iframe.php");
            }
            string webData = WebCache.Instance.GetWebData(url2);
            Match m = Regex.Match(webData, @"eval\((?<js>.*)?\)$", RegexOptions.Multiline);
            if (!m.Success)
                return string.Empty;
            string js = "var p = ";
            js += m.Groups["js"].Value;
            js += "; ";
            js += "function packed(){return p;};";
            ScriptEngine engine = new ScriptEngine();
            engine.Execute(js);
            string data = engine.CallGlobalFunction("packed").ToString();
            m = Regex.Match(data, @"""(?<url>http[^""]*)");
            if (!m.Success)
                return String.Empty;
            SetSub(webData);
            return m.Groups["url"].Value;
        }

 public string Execute(string scriptValue)
 {
     var jsContext = new ScriptEngine();
     jsContext.Evaluate("function __result__() {" + scriptValue + "}");
     return jsContext.CallGlobalFunction("__result__").ToString();
 }

        private string DecryptWithCustomParser(string jsContent, string s)
        {
            try
            {
                // Try to get the functions out of the java script
                JavaScriptParser javaScriptParser = new JavaScriptParser(jsContent);
                FunctionData functionData = javaScriptParser.Parse();

                StringBuilder stringBuilder = new StringBuilder();

                foreach (var functionBody in functionData.Bodies)
                {
                    stringBuilder.Append(functionBody);
                }

                ScriptEngine engine = new ScriptEngine();

                engine.Global["window"] = engine.Global;
                engine.Global["document"] = engine.Global;
                engine.Global["navigator"] = engine.Global;

                engine.Execute(stringBuilder.ToString());

                return engine.CallGlobalFunction(functionData.StartFunctionName, s).ToString();
            }
            catch (Exception ex)
            {
                Log.Info("Signature decryption with custom parser failed: {0}", ex.Message);
            }
            return string.Empty;
        }

 /// <summary>
 /// 将页面上的脚本转换成时间
 /// </summary>
 /// <param name="postTime">格式是：1409710649 </param>
 /// <returns></returns>
 static string GetPostTime(string postTime)
 {
     string timeSpan = string.Empty;
     var JSEngine = new ScriptEngine();
     JSEngine.Evaluate("function vrTimeHandle552(time){ if (time) {var type = [\"1分钟前\", \"分钟前\", \"小时前\", \"天前\", \"周前\", \"个月前\", \"年前\"];"
         +" var secs = (new Date().getTime())/1000 - time; if(secs < 60){ return type[0]; }else if(secs < 3600){	return Math.floor(secs/60) + type[1]; }else if(secs < 24*3600){"
         +" return Math.floor(secs/3600) + type[2]; }else if(secs < 24*3600 *7){	return Math.floor(secs/(24*3600)) + type[3]; }else if(secs < 24*3600*31){"
         +" return Math.round(secs/(24*3600*7)) + type[4]; }else if(secs < 24*3600*365){	return Math.round(secs/(24*3600*31)) + type[5];	}else if(secs >= 24*3600*365){"
         +" return Math.round(secs/(24*3600*365)) + type[6]; }else {	return ''; } } else { return ''; }}");           
     timeSpan = JSEngine.CallGlobalFunction<string>("vrTimeHandle552", int.Parse(postTime));
     return timeSpan;
 }